Legal Grandparent Test

The process of a DNA grandparentage test begins with the collection of samples from the grandparent(s) and grandchild through a buccal swab (mouth swab). This procedure gathers cells containing unique genetic information, or DNA (deoxyribonucleic acid). This DNA represents a “genetic blueprint” that is as unique to an individual as their fingerprint.

Once the samples are collected, they are sent to the laboratory for processing. Here, DNA is extracted from the cells, and specific regions of the DNA are amplified using a technique called PCR (polymerase chain reaction). This method allows for careful examination and comparison of the grandparent’s and grandchild’s DNA patterns.

The next step is the statistical analysis, which calculates a “grandparentage index”. This index is based on the typical DNA matches found in true biological grandparent-grandchild pairs.

The grandparentage index, a statistical measure of how closely the grandchild’s DNA matches the grandparent’s, is used to ascertain the likelihood of a biological relationship. An index value greater than 1.0 typically indicates a biological grandparent-grandchild relationship, whereas an index value less than 1.0 suggests that they are likely not biologically related. The greater the index value above 1.0, the higher the likelihood of a biological relationship, and the lower the value below 1.0, the lower the likelihood.

The main difference lies in how the DNA sample is collected. For a legal DNA test, the sample collection process must be witnessed by an impartial third party following a strict chain of custody protocol, ensuring that the results are admissible in court. Home DNA tests don't require this, as they are often used for personal knowledge and not intended for legal proceedings. There is no difference in the accuracy between our home DNA tests and legal DNA tests.

We understand the urgency often associated with legal DNA testing. Once the samples are received by our lab, you can expect results within 1-2 business days.

To ensure DNA results are admissible in legal proceedings in the United States, the DNA samples must be collected and witnessed following a strict "chain-of-custody" protocol. We offer two convenient options to accommodate your needs:

Self-Arranged Collection: Our home legal option offers the flexibility of arranging your own independent professional, such as a physician, nurse, or notary, for sample collection and witnessing services. This individual must act impartially and cannot be related to you or have any personal or financial interest in the test's outcome.

Laboratory-Arranged Collection: With this option, our experienced laboratory staff will handle everything. They will directly communicate with all test participants to arrange appointments at a time that works for everyone. Our extensive network of sample collection locations spans across North America, ensuring there's always a suitable and convenient location within easy reach.

With our extensive network of collection centers across North America, we can accommodate DNA sample collection for each participant at a location closest to them. Please note, a $25 charge will apply if individuals in the same case are collected at different locations.

Additionally, you may also arrange your own sample and witnessing services with a neutral third party (e.g. a notary, lawyer, doctor), and we'll test all samples together when they arrive at the laboratory.

For legal DNA testing, the sample collection and handling process follows a documented chain of custody. This means that the identity of the individuals being tested is verified (through government-issued ID, photographs, and fingerprinting), and the samples are tracked and documented at every step from collection to analysis.

Legal DNA relationship tests require a strict identification and witnessing protocol to be followed to ensure the correct individuals are being tested.

At the time of DNA sample collection, each participant must bring two forms of legal identification (at least one of these must be photo ID). In addition, the participant must also provide a recent photograph. Lastly, fingerprints are taken as an additional measure of identification. An impartial third-party specimen collector, who has no connection to the case or the individuals involved, oversees and documents the entire process.

Yes, a DNA test can be safely performed on a baby. The DNA sample is collected via a non-invasive cheek swab, which is painless and safe for individuals of all ages.

In a paternity test, it is not required to test the mother in order to obtain a conclusive legal DNA test result. The test can be absolutely conclusive even with just the alleged father and child's samples. However, including the mother's DNA can help strengthen the results, but it is entirely optional

For other relationship tests like sibling or grandparentage tests, the inclusion of the mother's DNA may help in obtaining more precise results.

DNA paternity testing can be arranged online, by phone or by fax. Questions can be directed to the laboratory by email at support@genetrackus.com or by phone at 1-888-802-0703. Our DNA advisors will be able to answer any questions you may have or to help you to schedule an appointment for testing.